Track-sanding apparatus.



Patented May 22, 1900.

No. 650,052. v

c. w. SHEBBURNE. TRACK SANDING APPARATUS.

(Application Med 1m. 20, 1:399. v (No Model.) 3' Sheets-Shoot l.

NVENTfi C15 9%W \Ml T h] ESEEE m: Mums PETERS c0. PNOTOLITHQ. wuumm'ou.n c.

No. 650,052. Patented May 22, I900. C. W. SHEBBURNE.

TBA-GK SANDING APPARATUS.

(Application filed Dec. 80, 1599.)

(lo Model.) 3 Sheets-Sheet 2.

\A/IT'N'EESEE Nu-650,052 Patented May 22, 1900;

c. w. SHERBUBNE.

mncx sAunma APPARATUS.

(No Model.) I (Am-mm med 1899') 3 Sheets-Sheet a.

NrrsD STATES PATEN Orrin.

CHARLES W. SIIERBURNF, OF BOSTON, MASSACHUSETTS.

TRACK-SANDING APPARATUS.

SPECIFICATION forming part Of Letters Eatent N0. 650,052, dated May 22,1900. Applitationfiled December 30,1899 Serial No. 742,120. (No model.)

To all whom, it may concern.-

Be it known that LCHARL'Es W. SHERBURNE, a citizen of the United States,residing at nos ton, in the county of Sudolk and State of Massachusetts,have invented a new and useful Improvement in TraclcSanding Apparatus,ofwhich the following is a full, clear, and exact description,referencebeing had to the accompanying drawings,forming a part of thisspecification, in explaining its nature.

The invention relates to the herein described track-sanding apparatus.

It comprises a sand-box and air and sand ejectors at the sides of thebox opposite each other, separated from each otherby the width of thebox, adapted to be attached singly orin groups to the sides of the boxand connected upon the inside of the box by air-pipes with a couplingattached to the rear side of the sandbox and upon the outside of thesand-box with sand-distributing pipes.

The invention further comprises a valve in the system preferably locatedand operated in the cab of the engine.

It will be understood that this invention belongs to the class oftrack-sanding apparatus which employs, for forcing or conveying sandfrom the sand-box to the tracks, air drawn or taken from the air-supplyof the air-brake system.

In the drawings, Figurel is a view in horizontal section of a portion ofa locomotive sand-box and in plan of my improvement attached thereto.section, enlarged, ofone of the air and sand ejectors, representing itsrelation to the side of the sandbox and also its relation to theairsupply pipe and to the air and sand delivery Fig. 3 shows a form ofor distributing pipe. coupling having branches connecting the mainair-supply pipes with branch pipes and adapted to be secured to the backor rear side of the sand-box. Fig. 4 is a view in elevation of thecontrolling-valve, to which reference will hereinafter be made. Fig. 5is a view in vertical central section thereof. Fig. 6. is also a view onthe same section, representing the valve in a different position fromthat represented in Fig. 5. vation thereof.

section upon the dotted line 8 8 of Fig. 6. Fig. 9 is a view in verticalsection upon the dotted Fig. 2 is a view in horizontal Fig. 7 is aviewin rear ele- Fig. 8 is a View in vertical line 9 9 of Fig. 6. Fig. 10 isa viewin vertical section upon' the dotted line 10 10 of Fig. 6. Fig. 11is a view in horizontal section of a three-way coupling as distinguishedfrom the six-way coupling of Fig. 8.

- eferring to the drawings, A represents a portion of the wall of thesand-box of a locomotive. It has extending from its rear side andattached to it a coupling 13, which con meets the air-supply pipe orpipes B outside thesand-box and extending from the train= brake supplythrough the cab to the sandbox with the air-distributing pipes 13*, B Band B inside the sand-box.

The coupling may be of the form shown in Fig. 3, which I term a six-waycoupling, or it may be of the form represented in Fig. '11, which I calla three way coupling. The six-way coupling is adapted to be coupled atits outer end 1) outside the wall of the sandbox to air-supply pipes B,consisting of the outer pipe I) and its inclosed pipe 11?, the outer andinner pipes providing the air-passages b and b, respectively, the firstof which connects with the air-passage b of the coupling and the secondof whichwith the passage 1) of the coupling.

It will be seen that the air-supply pipe surrounds the passage 12* andthat the passage b of the coupling surrounds the passage 1). The passage12 of the coupling extends through the sand-box and upon the inner sidethereof is divided into the two branches 5 and b which in turn areconnected with the passages in the pipes 13 13 (See Fig. 1.) The passageb in the coupling extends through the wall of the sand-box and separatesat its inner end into the branches b b which are connected in thesand-box, respectively, with the passages of the airpipes B B Thecoupling B is shaped for attachment to the sand-box wall by having ashoulder b to bear against the inner surface thereof and a threadedshank Z2 to extend through the hole and receive the fastenin g-nut b twhereby it is bolted to the wall of the box. It also has coupling-nut Z7which couples the collar b holding the ends of the air-pipes b b'thereto. The coupling 'upon its inner side has outwardly-extendingarmsb", I), I), and 12 in which, respectively, are the branches b bpassage 12 of the I), and b of the air-passages. These. arms arepreferably constructed to receive and hold the ends of the air-pipes B BB 13 by having the passages through them-enlarged suificiently toreceive and contain the ends of the pipes, which are secured in saidarms by any suitab'lemeans, as by providing said arms with longitudinalslits and clampingnuts. B extend from the coupling at the rear of thesand-box to the sand-ejectors O O O C at the sides of-the sand-box, theejectors O 0 being arranged side by side and at one side of the sand-boxand the ejectors O 0 being correspondingly arranged at the other side ofthe sand-box. The ejectors are alike in construction and operation anda'description of one-will answer fora description of all. The onlydifference between them is a difference in form, the ejectors O Cbeingshaped to-extend farther into the sand-box than the ejectors O O inorder that their inner ends maybe conveniently located 'for receivingthe ends of the air-supply pipes B B Each ejector is distinct from allthe others and is separately attached to the wall of the sandbox. Eachhas the shoulder c to bear against the inner wall of the box, thethreaded shank c, which passes through a hole in the wall of the box andreceives upon its outer section the nut- 0 which fastens it to the 'wallof the box, andthecoupling-nut 0 which attaches the pipe-holder c to theouter end of the threaded shank. The body 0 of the-ejector within-thesand-box bears an obtuse'angle to theshank, and it has at its inner endthe extension 0 at one side, to which the eye 0 for receiving andholding the end of the airssupply pipe is attached by means of thethreaded shank 0 passing through-a hole in the-extension, and alocking-nut 0 There extends through the ejector thepassage 0whichopensinto the sand-box at c, extends through the body and shank,and opens at sand distributing or delivery pipe 0 (See Fig. 2.) v T hereis thus provided between the end of the air-supply pipe and the passage0 a-vconnection with the sand-box upon the side of the extensionv cwhichconnection is open atihes-ide and at the topand bottom to thebox-and by means of which sand in the box falls in front of the outletof the air-supply pipe and is blown by the air through the passage c inthe ejector to the passage cl in the delivery-pipe outside the wall ofthe sandbox. Theend of-the air-pipe attached to the ejector by the eye'cis adjustable forward indback in the eye when the eye is releasedsomewhat by the nut 0 and the end of the air-pipe iscaused by tighteningthenut tov bei-rigidly clamped to the ejector. By this K means theposition of the outlet of the airsupplypipe-with respect to the inlet 0of the, ejector may be varied. It will be observed that vthe extension cis formed to provide a rest 0 for the end of the air-supply Theair-supply pipes B B B and supply from all the ejectors.

its outer-end 0 into the passage 0 of the pipe, which projects into theline of the passage c of the ejector and so that the end of theair-supply pipe held against it will have its passage centrallydisposedwith respect to the said passage 0 the said ,rest also forming a wallwhich partially closes one side of the inlet 0.

Each of the air-supply pipes B B B and -B is preferably of a lightorductile metal and is curved from a continuous are or straight line atany point in'itsleng th sufficient to, provide means for lengthening orshortening the actual distance between its ends, according asthe-distance between the coupling and the ejector may need to beincreased or decreased. This resultiis most effectively obtained bymeans of. a curve in the pipe of a bow shape, and this curveis letteredD in-each of the pipes. It'is really a makeup or compensating devicewhereby the position of its out-let may bechanged at will.

Figs. 4 to 9, inclusive, represent the valve for controlling the feed ofthe air to the ejectors, andconsequently the feed of the sand. It isrepresented as adaptedto regulatethe 1 feed of the air to the fourejectors O G at one side of the sand-box and C G at the other side ofthe box. It should be understoodthat it is desirable to simultaneouslyfeed the sand either from the four ejectors'or from either one of thetwo pairs made up of the ejectors C C or O O, and the valve is organizedto admit air to all the air-distributing pipes B B B B or to theair-distributing pipes B B or B B. It is also organized to shut oif theThe valve is preferably located in the engineers cab.

- E isthe valve-case. It has extending at one side a threaded neck 6,surrounding the air-inlet e, and itis connected with any source ofair-supply (preferably the traiubrake supply) by means of a pipe 6coupled by the coupling-e to the. neck. The case also has at one end thethreaded neck a, which is con nected by a coupling-nut e and apipespacing holder c with the ends of the pipes 19 b which provide theairpassages b b the latter being in the inner pipe 19 and the formerbeing in the outer pipe and surrounding the inner pipe, as abovespecified. The pipespacing holder 6 is like the holder b which holds andcenters the other ends of the pipes with respect to the coupling B. Ithas shoulders against which the ends of the pipes rest and sleeveswithinwhich they extend and passages which are in extension of passagesin the neck of the valve 6 The valve-chamber c is conical in form, beinglargest at the handle end of the valve, and it is closed at said end bythe screw-cap e", which screws into the end of the valve-body and whichsupports the valve spindle e extending through it, having at its innerend the conical valve e and at its outerend the operating-handle E. Thecap e also has aspringlatch e, which engages notches e in the end of theconical valve and which serves to hold the valve and move it into one ofthe latch ing-recesses 6 As above stated, the valve 6 is conical, and itis of a size to fit the conical side of the valve-chamber 6 its outersurface and said side forming the valve-seat. It is held seated by meansof air-pressure obtained by introducing air from the air-supply passage(2 through the port 6 into the chamber (2 between the end of the valveand the cap a The air under pressure is constantly contained in thischamber whatever the position of the valve may be and serves to maintainthe valve seated. The wall of the valvechamber has also the ports 6 ande", which connect the air-passage e of the neck e with air-passages inthe valve. The port e connects the air-passage c with the port 6 0f theconical valve, (see Fig. 6,) and this port 6 opens into the passage 0 inthe conical valve,

which in turn 0 ens into the assa eb in the pipe I) through anintermediate connectingpassage 6 in the neck 6 and in the collar 6 Thispassage is shown by dotted lines in Figs. 5 and 6. The port 6 connectswith the port 6 of the conical valve, and this port 6 opens into thecentral passage e in the conical valve, which in turn connects with thepassage b in the air-pipe 73 through the interm ediate passage e intheneck e and in the collar 6 (See Figs. 5 and 6.)

In addition to the ports 6 and e in the conical valve, which in Fig. 5are represented to be in line with each other and which provide for thesimultaneous flow of air from the air-passage 6 through the passages ofthe conical valve to the air-passages 11 b the conical valve has otherports F F. nects the air-supply passage 6 with the passage in theconical valve connected with passage The port F connects the air-passagec with the central passage 6 in the conical valve, which connects, ashas already been stated, with the passage 1) in the pipe 12 The conicalvalve also has the wall G, which serves to close both ports c and e"from its passages and whereby the connections between the passage e andthe passages 19 and b are entirely shut off or closed when required.

From this description it will be seen that the conical valve is adaptedto be moved to four positions with respect to the air-inlet e; that whenits port F registers with the port a" air will flow through the valve,the passage U in the pipe I), and the passages 11 b in the pipes 13 Band sand will be ejected by means of the ejectors C 0 that when the portF of the valve registers with the port The port F con-- 'e air will flowthrough the central passage of the valve, the passage 1)" in the pipe 11and the passages b" b in the pipes 13 B and sand will be ejected by theejectors 0 C that when the ports a e of the valve register with theports e e" air will flow through the valve and through the two passagesb b and the passages b b b Z) of the pipes B B l3 l3 and sand will beejected simultaneously by the two pairs of ejectors O C and 0 C and whenthe valve is turned to bring the wall G against the inletports e e theapparatus is at a state of rest, as no air can then reach the ejectors.

Having thus fully described my invention,

I claim and desire to secure by Letters Patent of the United States- 1.In a track-sanding device a sand-ejector secured to the wall of thesand-box, having an inlet in the sand-box and an outlet outslde the sameand means for securing a sand-distributing pipe to its outer end, andits inner.

endhaving an extension c beyond the sandinlet and an air-distributingpipe, the end of which is seen red to said extension with its outletfacing the sand-inlet-.

2. In a track-sanding device a sand-ejector having a sand-inlet on theinside of the sandbox and a sand-outlet upon the outside of the sand-boxand means outside the sand-box for attachment of a sand-distributingpipe thereto, the ejector having the extension 0 beyond the sand-inlet,supporting an air-pipe holder or eye 0 secured thereto by a threadedstem and nut and the air-supply pipe held by said eye or holder.

3. The combination in a track-sanding de-' vice of a sand-ejector,extending through the wall of the sand-box, having at one end asand-inlet and at the other end a sand-outlet, the portion extendingfrom the box being radially disposed with regard to it and the portionwithin the box bearing an obtuse angle thereto, and an air-feediu gnozzle in proximity to the sand-inlet.

4. In a track-sanding device the combination of a sand-ejector, anair-pipe coupling and aninterposed extensible air-supply pipe, as andfor the purposes described.

5. In a track-sanding device the combination of a sand-ejector, acoupling, an inter posed, air-supply pipe of a length greater than isnecessary for the purpose of connect ing the coupling with the ejectorand which excess of length is in the form of an outward and return bendbetween two relatively straight or direct sections, as and for thepurposes set forth.

7 6. The combination in atrack-sanding device of two pairs ofindependent ejectors arranged opposite each other, each pair having asection inside the sand-box and a section outside the sand-box, acoupling having inside the sand-box two pairs of diverging passages andoutside the sand-box two air-passages, one for each diverging pair ofpassages, and independent air-supply pipes connecting the two pairs'ofdiverging passages with the two pairs "of ejectors, as and for thepurposes set forth. v

7. The combination in a track-sanding device of two pairs ofsand-ejectors arranged opposite each other, each of which has a sectionWithin the sand-box and a section withing, two pipes connecting thevalve-casing with the coupling, one contained within the other andproviding two air-supply passages, the said valve-casing having anair-inlet, two

' air-outlets and a controlling-valve the casing of which has twostationary ports, and said valve having four movable ports and a cutofi,two of the movable ports being arranged a to bebrought simultaneously inline with the two stationary ports by the movement of the Tvalve and thethird and fourth ports being arranged tobe successively brought intoregister with the two stationary ports, two of said ports connectingwith one of the air-outlets and two with the other of the air-outlets,as and for the purposes described. out the sand-box and each of whichhas its g 9. In a track-sanding device a valve-casiing provided with aconical cavity, an inlet having three entrances to the cavity and anoutlet having two ways or passages'connect- 'ing with the passages inthe air-supply pipes, a conical valve contained in said conical cavity,a chamber at the outer end of said Valvecasin g connected with theair-inlet to receive cut-off whereby air may be simultaneouslyadmitted'to both passages, or independently admitted to either passage,or shut off from all the passages and all the sand-ejectors, si-

OHARLES W. SHERBURNE. Witnesses: I

F. F. RAYMOND, 2d, J. M. DOLAN.

.multaneously operated, or operated in individual pairs or held fromoperation.

